Northern Red Oak

Arbor Walk #58, TreeKeeper ID #1566

This fast-growing oak is known for its hardy dark green leaves that turn bright red in the fall. This Midwest native’s beautiful dense crown provides good shade, and along with its ability to tolerate air pollution and drought, has made it a landscaping favorite.

The Northern Red Oak is a member of the subgenus of red oaks. These oaks are distinguishable from other oaks from their awns (soft bristles) at the ends of leaf lobes, their orange hairs on the leaf underside at vein intersections, and their dark, ridged bark.

Common NameNorthern Red Oak
Latin NameQuercus rubra
Indigenous Name(s) Miami: maamhkatiaahkatwi
Cultivar/Variety 
Commercial Name 
Global Distribution
Where to find Arbor Walk #58 on WashU campus
Our Northern Red Oak in space
GPS Coordinates

N/A

Percent Concrete

N/A

Distance to Buildings
YearClose Building #1Close Building #2Close Building #3
2020Givens Hall, 12 mSteinberg Hall, 17.03 mWeil Hall, 52.92 m
Distance to Other Species
YearClose Species #1Close Species # 2Close Species # 3
2020Flowering Crabapple, 7.17 mEuropean Beech, 14.38 mChinkapin Oak, 15.83 m
Our Northern Red Oak through time
Standard Measurements
YearHeight (m)DBH (cm)Caliper (m)Crown Diameter N-S (m)Crown Diameter E-W (m)Average Crown Diameter (m)
202012.178626.8N/A7.58.68.05
202313.931.8N/A9.029.719.365
Nests and Pests
YearDescription
2020Lots of green and grey lichen on trunk bark
Young fungal growth: a very small heartrot-shaped plate with white fibrous, silk-like roots
2023Squirrel nest
How to identify a Northern Red Oak
Leaf Identification

The leaves of the Northern Red Oak are simple, alternate, dull and green. Their shape is oblong with 7-11 pointed lobes that each have an awn (bristle-tip).

Twig and Bud Identification

The twigs are curved, reddish brown and have multiple brown terminal buds.

Bark Identification

The bark is gray, with furrows that resemble ski tracks.

Fruit Identification

The fruits of the Northern Red Oak are ovoid acorns, 3/4″-1 1/4″, with a flat, shallow cup.

Flower Identification

The flowers of the Northern Red Oak are monoecious with yellow hanging male catkins and small female flowers with red styles.

Oak ID Tips
  • Compared to other similar-looking red oaks, such as Shumard Oak, Scarlet Oak, or Northern Pin Oak, the leaf sinuses are much more shallow on the Northern Red Oak.
  • The base of the Northern Red Oak is symmetrical, unlike the Black Oak.
  • The Northern Red Oak also has a large leaf compared to other red oaks.
Relationship of Quercus rubra to other species in the arboretum
Additional resources on the Northern Red Oak

Take a look around Arbor Walk Tree #58